Individual filter



P. E. CRADYA INDIVIDUAL FILTER.

APPLICATION HLED DEc.'1.1917.

Patented M31. 9, 1920.

corresponding parts, the improved filter is v s cn - VUnirnpsTATES PATnNr onirica.;v

rnrnn nomini', or BURLINGTON, vnnivronr.-

Specicationof Letters Patent. Patented Mal'. 9, 1920.

Application led December 7, 1917. Serial No. 206,010.

This invention relates to filtering devices intended for individual use and is especiallyr designed for the use of travelers. Y

An object of the invention is to provide a device of the above character which is simple in construction, compact in form and capble of being conveniently carried in the poc et. r

To this end the invention consists of a filter embodyinrr a pair of detachable sections telescopiczilly arranged, one of which is provided with. a mouth piece,`each of the said sections being provided at their outer ends with permanently attached screens, while their opposed or inner ends are provided with removable screens, the said sec- 4 -tions having the space between the screens filled with a filtering element preferably in the form of charcoal. The removable screens are each composed of a ring with a line wire mesh secured to one edge thereof and a loop also secured to the rings for the purpose of providing for the convenient removal of the screens. the said kscreens being held in position` within the tubular members by screws or other fastening devices passing through the said members and engaging the rings.'

The invention further consists of the following novel combinations and arrangement of parts, to be hereinafter more fully described and illustrated in the accompanying drawings, in which:

Figure 1 is a perspective view of a filter embodying the present invention. l Fig. 2 is an elevation of the same with th sections supported. 1

Fig. 3 is a longitudinal sectional view with the parts in the position shown in Fig. 1.

Fig. 4 is a detailed perspective view o one ofthe removable screens and Fig. 5 is a view of the form of hook preferablv employed for removing the screens.

Referring to the drawings in detail, wherein like characters of reference denote shown as comprising a pair of telescopically arrangedsections 10 and 11, one end of the j section 11 being threadedly received within the adjacent end of the section 10 as shown at 12, while the opposite end of the said secr Y tion 12 is formed with a mouth piece 13. 60

Each of the sections 10 and 11 is provided at opposite ends withpermanently secured screensflllC and 15, the former being positioned an appreciable distance from the mouth piece 13, while the latter is preferably located adjacent the outer end of the section 11. Each of the sections 10 and 11 is also provided with screens 16 and 17, which are secured to rings 18 vand are of av diameter Y to fit within the inner part of the sections. The screens 16 and 17 arelocated Vadiacent the inner ends of lthe sections 10 vand 11 and are preferably held in position bv means of set screws 19 passing through the tubular `sections and engaging the rings. or by other fastening` devices. Such fastenings however inav be dispensed with.

Each of the screens 17 and 18 ,is/.pro-l vided with loops 20. which are secured to the rings and extend diametrically across the screens to provide means yfor engagement with a hook 21 or'other instrument to facilitate the removal oF the screens from -the tubular.v members. The space between4 the screens 14-16 and 15-17 is filled with char- 85 coal or other suitable filtering element, so

that water passing through the tubular members will be filtered. j

B vfforming the device in the manner y shown and described. the twosections mavv be readily disassociated and the screens '16 'and 17 Vremoved for the purpose of thorformedof two Yrsections telescopicallpv,v ar- 105, ranned. a mouth piece formed on one of said sections, an end screen secured in the outer end of each of said sections, a screen positionedgfi'n the adjacentfends oi eachofgsaid 5 with said rings to removably hold them in position, dametrically extending loe-pese.-

curedto the outer face of each of the lastev- Y mentioned sereensffor detachable engagement with an'instrument for removing Said screens and a ltering element located between the 10 screens of..eachsection;v

In testimony whereof I affix my signature.

PETER E. CRADY. 

